michelle obama wowed the crowd with a speech about her husband that brought in remarkable insight about life in the white house. she said she had learned the presidency does not change person, it reveals them. she actually wrote much of the speech, which is in itself a refreshing thing. but julien castro delivered a kind of speech that we used to call a barn burner, my favorite line, he said " you cannot be pro-business unless you are pro education ". it is about time someone said that. everyone is expecting a big speech tonight from bill clinton, but he is going to have to go some to beat what we heard last night. >> thank you very much, that is the cbs evening news for tonight. we will be back at 7:00 with live coverage of the democratic national convention and cbs this morning will have the very latest first inninthing tomorrow. i'm scott pelly, see you soon. >> good evening i am alan martin. >> i am dana king and we're finding out more about the suspect that shot and gravely wounded a chp officer during a traffic stop on 680. christopher lacy got his master's and surfaces of state a